Rotary pump.



P. GAUER. ROTARY PUMP.. APPLICATION FILED AUG. 21, 1907.

Patentedv oct. 20, 1908.

PAUL GAUER, ST. PETERSBURG, RUSSIA.

ROTARY PUMP.

Specification of Letters 1:"atent.`

Patented Oct. 20, 1908.

Application filed August 21, 1907. Serial No. 389,504. l

T all 'whom it may concern:

Be it known that I, PAUL GAUER, subject ol the German Emperor, residing at St. Pe-

tersburg, in the Empirepf Russia, have in yented certain new and useful Improvements in Rotating Pumps, of whlch the following 1s a s ieciiication.

traversed by ports or passages.

One embodiment of my new pump is represented by way of example in the accompanying drawings. y

Figure 1 is a vertical longitudinal section,

. Fig. 2 a vertical cross section, and Fig. 3 a

horizontal section through the device. Fig. 4 is a section on the line A-B, and Fig. 5v a section on the line C-D of Fig. 3.

The ump consists of the casing 1 which is closed y the cover 2. The member 3 is revolubly supported in said easing eccentrially to the axis of the casing. The axis of the casing 1 is situated at 30, and the axis of the member 3 is situated at 31v In the member 3 there are cylindrical boringsfeacb. having a piston 4.- adapted to slide therein. Each piston 4 terminates in a fork 5 provided with a pin '6 carrying` two outer idle rollers 7 and a roller .8 arranged' between the cheeks of the fork. Said rollers 7 are guided positively by means of runways 9, 10 so that in correspondence with the varying distance (the eccentricity) of the runways from the axis of rotation of the member 3 the pistons 4 execute a rectilinear reciprocatory motion. Duringl the reciprocation of the pistons lthe roller 8 slides in the rectilinear guides 11 rigidly connected with the member 3 whereby the pistonsare securely guided rectilinearly. The guides llp'are supported by ribs 33 which are shown in'proileby the linesV 32. The immovable cap 1.2 presses agamst the conical end of the member 3, said cap being provided with the admission-pipe and the outlet-port 14 adapted to be connected with the delivery-pipe.

Each of the three cylindrical borings containing the pistons 4 is connected with a 4port 15, 16, or 17 respectively. Into each orthe ports 15, 16 or 17 open two transverse ports 18, 19, 20, 21; or 22, 23 (Figs. 4 and 5). In the present case the arrangement is such that as soon as one of the ports 15, 16 or 17, for example the port 16 is connected. by means oi' the transverseport 20 with the admissionport 13 it is shut oli from the outlet-port 14 because the transverse-port 21. connected with it takes up the position indicated in Fig. 5. During the suction period the ports 15,

into communication with the admission-port 13 Whereas during delivery period they come in to communication with the delivery port 1 '1.

. In the ump casing the set screw 24 is pro-- vided. aid set screw serves to regulate the fit between the rotating member 3 and the cap 12. When the pressure in the delivery port 14 (Fig. 3) rises and tends to press out the member' 3, i. e. thereby to loosen the tit, a portion of the WaterV delivered passes through the delivery port 14 and the port 25 (Fig. 3) into the chamber 26 and conse-- quently resses the elastic diaphragm 27 against t e screw 24. As the screw 24 together with the casing 1 is connected with the member 3 the cap 12 is pressed against the member 3.

Instead of allowing the member 3 to rotate in the casing 1 as above described the reverse might be the case, namely, there might be imparted to the casing 1 a rotary motion rlelatively to the member 3. By means of t iis possesses advantages worthy of considerv ation the same eect as before is obtained. By the alteration indicated however the essence of the present invention is not al tered. A

Having now fully described my invention I declare that what I claim is 1. In a pump the combination of a casing, a rotating member eccentrically arranged therein, oi.' pump cylinders provided in isaid member, a cap surroundingsaid member, an

ports respectively connected to said cylinders, of transverse erts respectivelylopening into each oi' sai first ports and said cap adapted `to be pressed against said member by the ressure oi the water delivered, sub stantial y as and i'or the purpose set forth.

i 2. In a pump the combination oi a casing, l a conical rotating member eccentrically ar- I ranged therein, of pump cylinders provided lin said member, pistons res ectively prol vided in said cylinders adapterito be reciprol cated on. the rotation of said member, a cap partly 16, 17 consequently come oneafter the other kinematic reversal which in certain cases surrounding said member, an admisadmission and deliver ort in said ca of y sion and delivery port in said ca of ports respectively connected to said cy inders,` of transverse ports respectively openin into each of said irst ports and said cap a apted to be pressed against said member by the pressure of the Water delivered, substantially as and for the purpose set, forth.

3. In a pump the combination of a casing, a yconical rotating member eocentrically arran ed therein pump cylinders rovided in sai member, pistons respective y provided in said cylinders adapted to be reciprocated on the rotation of said member, a cap surrounding said member, a diaphragm in said cap, an admission and delivery port in said ca of ports respectively connected to said cy indersf' of transverse ports respectively opening into each oi' said irst ports, said diap ragm adapted to be subjected to the pressure of the Water delivered and a set-screw abutting against said diaphragm, substantially as an for the pur ose set forth.

In testimonywhereo IaiX my signature in presence of two Witnesses.

, PAUL GAUER. Witnesses: H. A. LovrAemNE,

AUG. Miems. 

